Recent Earthquakes in California and Nevada


== PRELIMINARY EARTHQUAKE REPORT ==

U.S. Geological Survey, Menlo Park, California
U.C. Berkeley Seismological Laboratory, Berkeley, California


Version #0: This report supersedes any earlier reports of this event. This is a computer-generated message. This event has not yet been reviewed by a seismologist.

A micro earthquake occurred at 2:48:22 PM (PDT) on Thursday, October 23, 2025.
The magnitude 0.9 event occurred 5 km (3 miles) NNW of Orinda, CA.
The hypocentral depth is 6 km ( 4 miles).


Magnitude 0.9 - duration magnitude (Md)
Time Thursday, October 23, 2025 at 2:48:22 PM (PDT)
Thursday, October 23, 2025 at 21:48:22 (UTC)
Distance from Orinda, CA - 5 km (3 miles) NNW (340 degrees)
Kensington, CA - 7 km (4 miles) E (79 degrees)
Lafayette, CA - 8 km (5 miles) WNW (299 degrees)
Berkeley, CA - 9 km (5 miles) NE (49 degrees)
Albany, CA - 9 km (6 miles) ENE (65 degrees)
Coordinates 37 deg. 55.3 min. N (37.922N), 122 deg. 12.0 min. W (122.201W)
Depth 5.82 km (3.60 miles)
Quality Fair
Location Quality Parameters Nst=9, Nph=9, Dmin=4.2 km, Rmss=0.32 sec, Erho=1.39 km, Erzz=1.60000002 km, Gp=105 degrees
Event ID# nc75253521
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